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A084807 as a simple table

na(n)
11
228
340
454
569
687
7107
8128
9152
10177
11205
12235
13267
14300
15336
16374
17414
18455
19499
20545
21593
22643
23695
24749
25805
26863
27923
28985
291048
301115
311183
321253
331325
341399
351475
361553
371633
381715
391799
401886
411974
422064
432156
442250
452347
462445
472545
482648
492752

[1,28,40,54,69,87,107,128,152,177,205,235,267,300,
 336,374,414,455,499,545,593,643,695,749,805,863,
 923,985,1048,1115,1183,1253,1325,1399,1475,1553,
 1633,1715,1799,1886,1974,2064,2156,2250,2347,2445,
 2545,2648,2752]